| 气象因子与油菜产量关系的初步研究 |
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| 引用本文： | 汪剑鸣,龚乃弘.气象因子与油菜产量关系的初步研究[J].江西农业学报,1997,9(1):6-11. |
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| 作者姓名： | 汪剑鸣 龚乃弘 |
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| 作者单位： | [1]江西省宜春地区农业局 [2]江西省宜春地区气象台 |
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| 摘 要： | 研究表明：在油菜角果期遇３０℃以上高温，促使油菜高温逼熟，昼夜温差越大，油菜产量越高；降雨量在本试验中对产量没有很大影响，日照时数越多产量越高；冬季冰冻使菌核病发病基数降低，开花期的霜冻导致油菜分段结实
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| 关 键 词： | 油菜产量 温度 雨量 日照 冰冻 |
A Preliminary Study on the Relationship Between Meteorological Factors and Rape Yield |
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| Abstract: | Rapeseed would be prompted to ripen when the temperature was higher than 30℃ at seed-setting stage. The greater the diurnal temperature difference, the higher the yield. There was slight (if any) relationship between rainfall and rapeseed yield. In contrast, the hours of sunshine was closely correlated with rapeseed yield. The greater the sunshine hours, the higher the yield. Winter freezing could reduce the base occurrence of sclerotiniose, and frosting at flowering stage would cause stage seed-setting. |
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| Keywords: | Rape Yield Temperature Rainfall Sunshine Freezing |
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